參數(shù)資料
型號(hào): AD7856ARSZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 29/32頁(yè)
文件大小: 0K
描述: IC ADC 14BIT 8CHAN 5V 24SSOP
標(biāo)準(zhǔn)包裝: 1
位數(shù): 14
采樣率(每秒): 285k
數(shù)據(jù)接口: 8051,QSPI?,串行,SPI? µP
轉(zhuǎn)換器數(shù)目: 2
功率耗散(最大): 89.25mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 105°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 24-SSOP(0.209",5.30mm 寬)
供應(yīng)商設(shè)備封裝: 24-SSOP
包裝: 管件
輸入數(shù)目和類(lèi)型: 8 個(gè)單端,單極;4 個(gè)偽差分,單極
AD7856
–6–
REV. A
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD7856 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
ABSOLUTE MAXIMUM RATINGS
1
(TA = +25°C unless otherwise noted)
AVDD to AGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
DVDD to DGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
AVDD to DVDD . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
Analog Input Voltage to AGND . . . . –0.3 V to AVDD + 0.3 V
Digital Input Voltage to DGND . . . . –0.3 V to DVDD + 0.3 V
Digital Output Voltage to DGND . . . –0.3 V to DVDD + 0.3 V
REFIN/REFOUT to AGND . . . . . . . . . –0.3 V to AVDD + 0.3 V
Input Current to Any Pin Except Supplies2
. . . . . . .
±10 mA
Operating Temperature Range Commercial
A Version . . . . . . . . . . . . . . . . . . . . . . . . . –40
°C to +105°C
K Version . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
°C to +105°C
Storage Temperature Range . . . . . . . . . . . . –65
°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . +150
°C
Plastic DIP Package, Power Dissipation . . . . . . . . . . 450 mW
θ
JA Thermal Impedance
. . . . . . . . . . . . . . . . . . . . 105
°C/W
θ
JC Thermal Impedance . . . . . . . . . . . . . . . . . . . . 34.7
°C/W
Lead Temperature, (Soldering, 10 secs) . . . . . . . . . +260
°C
SOIC, SSOP Package, Power Dissipation . . . . . . . . . 450 mW
θ
JA Thermal Impedance
. 75
°C/W (SOIC) 115°C/W (SSOP)
θ
JC Thermal Impedance . . 25°C/W (SOIC) 35°C/W (SSOP)
Lead Temperature, Soldering
Vapor Phase (60 secs) . . . . . . . . . . . . . . . . . . . . . . . +215
°C
Infrared (15 secs) . . . . . . . . . . . . . . . . . . . . . . . . . . . +220
°C
ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >1 kV
NOTES
1Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational sections
of this specification is not implied. Exposure to absolute maximum rating condi-
tions for extended periods may affect device reliability.
2Transient currents of up to 100 mA will not cause SCR latch-up.
PIN CONFIGURATIONS
(DIP, SOIC AND SSOP)
13
16
15
14
24
23
22
21
20
19
18
17
TOP VIEW
(Not to Scale)
12
11
10
9
8
1
2
3
4
7
6
5
AD7856
CONVST
DIN
CLKIN
SCLK
SYNC
BUSY
SLEEP
REFIN/REFOUT
DVDD
DGND
DOUT
AVDD
AGND
CREF1
CREF2
AIN1
AIN2
AIN7
AIN8
CAL
AIN3
AIN4
AIN6
AIN5
ORDERING GUIDE
Linearity
Error
Package
Model
(LSB)
1
Options
2
AD7856AN
±2 typ
N-24
AD7856AR
±2 typ
R-24
AD7856KR
±2
R-24
AD7856ARS
±2 typ
RS-24
EVAL-AD7856CB
3
EVAL-CONTROL BOARD
4
NOTES
1Linearity error here refers to integral linearity error.
2N = Plastic DIP; R = SOIC; RS = SSOP.
3This can be used as a stand-alone evaluation board or in conjunction with the
EVAL-CONTROL BOARD for evaluation/demonstration purposes.
4This board is a complete unit allowing a PC to control and communicate with
all Analog Devices evaluation boards ending in the CB designators.
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